Patents by Inventor Yoon-Koog Hwang

Yoon-Koog Hwang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Deck-to-girder connections for precast or prefabricated bridge decks
    Patent number: 6904636
    Abstract: A technique and apparatus for integrally connecting a precast or prefabricated deck to a girder. A connection structure and method for connecting a precast or prefabricated deck to a girder, makes it unnecessary to form shear pockets in the deck and to remove existing shear connectors already installed to the girder, and makes it possible to easily adjust an elevation of the deck and to obtain excellent structural integration between the girder and the deck. The connection structure includes at least one rod shaped elevation adjustor inserted through the deck to support the deck spaced apart from an upper surface of the girder at a predetermined interval. A length of the rod shaped elevation adjustor projected toward an upper face of the girder can be changed to allow the deck to be supported. At least one shear connector is inserted through the deck.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: June 14, 2005
    Assignee: Korea Institute of Construction Technology
    Inventors: Yoon-Koog Hwang, Hyeong-Yeol Kim, Ki-Tae Park, Young-Ho Lee, Sun-Myung Kim
  • Deck-to-girder connections for precast or prefabricated bridge decks and construction method thereof
    Publication number: 20050011148
    Abstract: A technique and apparatus for integrally connecting a precast or prefabricated deck to a girder. A connection structure and method for connecting a precast or prefabricated deck to a girder, makes it unnecessary to form shear pockets in the deck and to remove existing shear connectors already installed to the girder, and makes it possible to easily adjust an elevation of the deck and to obtain excellent structural integration between the girder and the deck. The connection structure includes at least one rod shaped elevation adjustor inserted through the deck to support the deck spaced apart from an upper surface of the girder at a predetermined interval. A length of the rod shaped elevation adjustor projected toward an upper face of the girder can be changed to allow the deck to be supported. At least one shear connector is inserted through the deck.
    Type: Application
    Filed: October 1, 2003
    Publication date: January 20, 2005
    Inventors: Yoon-Koog Hwang, Hyeong-Yeol Kim, Ki-Tae Park, Young-Ho Lee, Sun-Myung Kim